Description Accrding to DIN 18250 class 3 For wooden or steel doors Optional for rebated or non-rebated doors Suitable for external fire and smoke protection doors Prepared for profile cylinders With key action Deadbolt 2-turns Technical date: Backset:..........50mm/55mm/60mm/65mm Forend Type: . round head/square head Width: ............20mm/22mm/23mm/24mm Follower. 8mm /9mm Distance..........72mm Forend finish Stainless steel: .......stain stainless steel polished stainless steel Vacuum metalizing: stain brass PVD AB AC. Size of carton :42*25*15mm Weight of cartoon: 17kg.